York MPADC - Manual (Page 14)

If you have any questions regarding the installation of your Multi-Pure Drinking Water System or for replacement filters,
Please call your authorized independent dealer
.
F508CB-MPADC/0603
Maintenance Problems
Flushing / disinfecting the unit housing: Multi-
Pure recommends that you not allow water to sit in
a unit for extended periods of time without it being
used. If a unit is left unused for more than 10 days,
it may need to be flushed/disinfected before you
resume use.
Stuck / Sticking Diverter Valve: Normally caused
by a mineral (calcium) buildup around the diverter
stem. There are two methods for solving this prob-
lem (Vegetable Oil or Vinegar).
To flush a unit that may be contaminated:
1. Confirm that water is turned off to the unit.
2. Relieve the water pressure (if below sink unit) by opening the unit faucet.
3. Remove and discard the used filter.
4. Clean & rinse out the inside of the housing.
5. Add 5 to 7 drops of bleach, such as Clorox™ or Purex™ (5 ¼% sodium hypochlorite) to the
bottom canister.
6. Reconnect the housing top and bottom without the replacement filter.
7. Turn on water and let unit housing fill up with the water/bleach solution.
8. Allow unit to soak for at least 30 minutes.
a. Countertop Units: To disinfect the spout, place your finger over the tip of the spout and turn
the unit upside down. Repeat this procedure 2 or 3 times during the 30-minute soak period.
b. Below Sink Units: To disinfect the faucet spout, remove the spout and place it in a container
with one-quart of water and bleach (use 5 drops of bleach) and allow to soak for 30 minutes.
9. After the housing has soaked for 30 minutes, disassemble the top and bottom and pour out the
water/bleach solution. Rinse out the inside of the housing.
10. Replace the filter (cartridge) following the instructions with the new filter.
11. Follow the instructions with the replacement filter for reconnecting and flushing your unit.
Vegetable Oil (Using vegetable oil to lubricate the diverter valve does not dissolve the mineral
deposits which build up and cause the sticking; thus it will be necessary to repeat this procedure
from time to time)
1. Unscrew diverter valve from faucet.
2. Pour a little vegetable oil in the inlet hole.
3. Pull the diverter valve stem in/out several times to lubricate it thoroughly.
4. Replace diverter valve on faucet.
Vinegar (Using vinegar to dissolve the mineral deposits may cause discoloration)
1. Unscrew diverter valve from faucet.
2. Soak diverter valve in vinegar for 10 minutes.
3. Rinse and replace diverter valve on faucet.
Diverter Stem Stuck (If diverter stem is not operating properly - sticking)
1. Disconnect diverter valve from faucet.
2. Push pin in -- if you can push the pin easily, there was air in the tubing.
3. Reconnect diverter valve.